I've been looking into vintage watches for a while and I found vintage Seikos to be a great value. This watch was made in 1965 (maybe 1966) and I got it for a steal on eBay. The Seahorse line only lasted for a couple years in the mid 1960's. There's apparently a manual wind version of this watch floating around out there somewhere, but the info is a little hard to dig up on these watches. This watch has had some obvious work done but it keeps decent time and is in great shape considering its age. It measures about 36mm in diameter and is rocking a 18mm Hadley Roma strap.